(uncountable, literature) A subgenre of the fantasy or science fiction genres that involves the discovery of an unknown world out of time, place, or both.

(idiomatic) Entirely, to all appearances.

The mythical giant sea turtle or tortoise that upholds the World in various cosmologies.

The ideology of universal global understanding and non-violence.

plural of man of the world

Momentous; of great import; of great significance, importance or consequence.

(video games) An area in a video game from which most or all of the game's levels are accessed. / (science fiction) A planet which serves as a hub.

(music, rare) Traditional music, as opposed to popular music or classical music.

(dated) World War I

(philosophy) Especially in philosophical idealism, the world as it appears to human beings as a result of being structured by human understanding; the world as experienced, as opposed to the world of things-in-themselves.